Polytunnel potatoes: triffids arise

In the last two weeks, the Red Duke of York potatoes have taken on a life of their own. They have been fleeced as there is a chance of frost until the end of the month, Whilst the poly tunnel might reach the heady heights of 30 something degrees, it can still suffer a rapid drop in temperature at night. So all the shoots have been tucked up under fleece. And they really have taken off. They took a while to take off, the clay is horrible, and it was still quite cold when they were first sunk.As the weather picked up, and April was relatively calm; we didn’t have that many showers. The shoots have become more vigorous. My next thought would be when these are going to be harvested. These are to be taken up at the appropriate time, and tomatoes to be plugged in. The tomatoes are getting taller still in the 4TB. I have had a handful of RDOY potatoes previously, those were outside in the clay. Inside, there is a distinct difference. I have yet to furtle beneath the soil, I don’t want the potatoes to be really very diddly. Might give it another week to fourteen days, before seeing what lurks beneath.